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Finding the Fourth Proportional to 487,396.30, 731,094.45 and 155,005.90

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Solution

The fourth proportional to 487,396.30, 731,094.45 and 155,005.90 is: 232,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,396.30 : 731,094.45 = 155,005.90 : x
  2. Step 2: Convert to fraction form
    487,396.30/731,094.45 = 155,005.90/x
  3. Step 3: Cross multiply
    487,396.30x = 731,094.45 × 155,005.90
  4. Step 4: Simplify right side
    487,396.30x = 113,323,953,207.26
  5. Step 5: Solve for x
    x = 113,323,953,207.26/487,396.30
  6. Step 6: Final answer
    x = 232,508.85

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.